Windthrow

Windthrow, also known as windthrow or wind break, called the result of severe storms or hurricanes uprooted or bent trees. This may be on individual trees or in area occur, the latter especially occurs in large spruce monocultures and is usually associated with very high damage totals. In forestry, the missing person storm wood stocks are counted for the calamity.

When wind throw the anchor of the tree in the ground is not enough by the roots and the stem is overturned, including root ball. When the wind break ground anchor withstands, however, the flexural strength of the strain is exceeded and it breaks.

The largest wind breakages occur in Central Europe usually through autumn and winter storms. Especially a lot of windthrow caused there, for example hurricanes Wiebke 1990, Lothar 1999, Cyril in 2007 and Christian 2013.

Follow

For large storm damage, there is an oversupply of wood, making the wood prices of the qualities on the market often fall significantly. Therefore, wind damage is also not directly affected forest owners usually a financial loss dar. This is because wood is not stored indefinitely without loss of quality and thus the price. However, the financial losses incurred by a special income tax treatment of the calamities use be mitigated.

On the other hand, provide the uprooted by the wind trees as dead wood an ideal habitat for fungi or insects. In addition to positive effects for the conservation of this can also be a proliferation of pests such as the bark beetle mean. This risk is particularly important in coniferous forests. Forests can also come in a large-scale tree loss from its ecological balance.

Elimination

The work-up of Storm Damaged Timber is one of the most dangerous activities in forest work. After storm damage, the serious injury or death consequences in the workup accumulate. Therefore, specific courses and / or machine use ( Harvester ) are highly recommended. As an application of the saw between the energized tribes is extremely dangerous, even blasting operations are sometimes used.